Fast legs/stepping over...for speed off the mark , speed endurance , getting up off the ground , acceleration , working while fatigued.....
The players work across an area ...the width of the field ?... with a ball , eventually.
Groups of 5-10
Line up in single file.
Player1 runs 5m and goes to ground , lies across the path of the rest of the group.
The next player runs and steps over the player on the ground and lies down immediately.
Every player in the group follows.
Player 1 gets up when he is passed by the whole group and repeats.
If they lie close to each other = high knees.
If they lie further apart = striding out.
When they work back give them the ball and they can :
Pass as they go to ground,
Pass from the ground,
Place the ball away from the body.....
Extension : Make it a body position / height drill..the start of good rucking.
All players start on ground,
On go the first 2 players stand up , bind as a 2 man front row and run , stepping over the players on the ground...running low enough to touch the players on the ground with their finger tips, when they get to the end they lie down again for the rest of the group to go in 2' s over them.
Try it with bigger groups.